//
//  WeeklyDigestCardView.swift
//  Reflect
//
//  Displays the AI-generated weekly emotional digest card in the Insights tab.
//

import SwiftUI

struct WeeklyDigestCardView: View {

    let digest: WeeklyDigest
    let onDismiss: () -> Void

    @AppStorage(UserDefaultsStore.Keys.moodTint.rawValue, store: GroupUserDefaults.groupDefaults) private var moodTint: MoodTints = .Default
    @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system

    private var textColor: Color { theme.currentTheme.labelColor }
    private var accentColor: Color { moodTint.color(forMood: .good) }

    @State private var appeared = false

    var body: some View {
        VStack(alignment: .leading, spacing: 16) {
            // Header
            HStack {
                Image(systemName: digest.iconName)
                    .font(.title2)
                    .foregroundStyle(accentColor)

                VStack(alignment: .leading, spacing: 2) {
                    Text(String(localized: "Weekly Digest"))
                        .font(.caption)
                        .fontWeight(.semibold)
                        .foregroundStyle(.secondary)
                        .textCase(.uppercase)

                    Text(digest.headline)
                        .font(.headline)
                        .foregroundColor(textColor)
                }

                Spacer()

                Button {
                    WeeklyDigest.markDismissed()
                    withAnimation(.easeInOut(duration: 0.3)) {
                        onDismiss()
                    }
                } label: {
                    Image(systemName: "xmark.circle.fill")
                        .font(.title3)
                        .foregroundStyle(.tertiary)
                }
                .accessibilityLabel(String(localized: "Dismiss digest"))
                .accessibilityIdentifier(AccessibilityID.WeeklyDigest.dismissButton)
            }

            // Summary
            Text(digest.summary)
                .font(.subheadline)
                .foregroundColor(textColor)
                .fixedSize(horizontal: false, vertical: true)

            Divider()

            // Highlight
            HStack(alignment: .top, spacing: 10) {
                Image(systemName: "star.fill")
                    .font(.caption)
                    .foregroundStyle(.yellow)
                    .padding(.top, 2)

                Text(digest.highlight)
                    .font(.subheadline)
                    .foregroundColor(textColor)
                    .fixedSize(horizontal: false, vertical: true)
            }

            // Intention
            HStack(alignment: .top, spacing: 10) {
                Image(systemName: "arrow.right.circle.fill")
                    .font(.caption)
                    .foregroundStyle(accentColor)
                    .padding(.top, 2)

                Text(digest.intention)
                    .font(.subheadline)
                    .foregroundColor(.secondary)
                    .fixedSize(horizontal: false, vertical: true)
            }

            // Date range
            Text(dateRangeString)
                .font(.caption2)
                .foregroundStyle(.tertiary)
        }
        .padding(20)
        .background(
            RoundedRectangle(cornerRadius: 20)
                .fill(Color(.secondarySystemBackground))
                .overlay(
                    RoundedRectangle(cornerRadius: 20)
                        .stroke(
                            LinearGradient(
                                colors: [accentColor.opacity(0.3), .purple.opacity(0.2)],
                                startPoint: .topLeading,
                                endPoint: .bottomTrailing
                            ),
                            lineWidth: 1
                        )
                )
        )
        .padding(.horizontal)
        .opacity(appeared ? 1 : 0)
        .offset(y: appeared ? 0 : 10)
        .onAppear {
            withAnimation(.easeOut(duration: 0.4)) {
                appeared = true
            }
        }
        .accessibilityIdentifier(AccessibilityID.WeeklyDigest.card)
    }

    private var dateRangeString: String {
        let formatter = DateFormatter()
        formatter.dateStyle = .medium
        return "\(formatter.string(from: digest.weekStartDate)) - \(formatter.string(from: digest.weekEndDate))"
    }
}